Overview
The ADS1278MPAPTEP from Texas Instruments is an octal, simultaneous-sampling 24-bit delta-sigma (ΔΣ) analog-to-digital converter (ADC). This device is designed to offer high precision and versatility, making it suitable for a variety of industrial and high-resolution measurement applications. Based on the single-channel ADS1271, the ADS1278 combines excellent DC and AC specifications, allowing for high-precision industrial measurements with large usable bandwidths. It features multiple operating modes to optimize performance for different applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 24 Bits | |
| Data Rate | Up to 128 kSPS (High-Speed mode) | SPS |
| Signal-to-Noise Ratio (SNR) | 111 dB (High-Resolution mode) | dB |
| Total Harmonic Distortion (THD) | -108 dB | dB |
| Offset Drift | 0.8 μV/°C | μV/°C |
| Gain Drift | 1.3 ppm/°C | ppm/°C |
| Analog Supply | 5 V | V |
| Digital Core Supply | 1.8 V | V |
| I/O Supply | 1.8 V to 3.3 V | V |
| Operating Temperature Range | -55°C to 125°C | °C |
| Package | HTQFP-64 |
Key Features
- Simultaneous sampling of eight channels
- Selectable operating modes: High-Speed, High-Resolution, Low-Power, and Low-Speed
- Linear phase digital filter
- Modulator output option (digital filter bypass)
- SPI or Frame-Sync serial interface
- Low sampling aperture error
- High DC accuracy with 0.8 μV/°C offset drift and 1.3 ppm/°C gain drift
Applications
- Vibration and modal analysis
- Multi-channel data acquisition
- Acoustics and dynamic strain gauges
- Pressure sensors
Q & A
- What is the resolution of the ADS1278MPAPTEP? The resolution is 24 bits.
- What are the different operating modes of the ADS1278MPAPTEP? The device has High-Speed, High-Resolution, Low-Power, and Low-Speed operating modes.
- What is the maximum data rate of the ADS1278MPAPTEP? The maximum data rate is up to 128 kSPS in High-Speed mode.
- What is the signal-to-noise ratio (SNR) in High-Resolution mode? The SNR is 111 dB in High-Resolution mode.
- What is the offset drift of the ADS1278MPAPTEP? The offset drift is 0.8 μV/°C.
- What is the gain drift of the ADS1278MPAPTEP? The gain drift is 1.3 ppm/°C.
- What are the supply voltage requirements for the ADS1278MPAPTEP? The analog supply is 5 V, the digital core supply is 1.8 V, and the I/O supply is 1.8 V to 3.3 V.
- What is the operating temperature range of the ADS1278MPAPTEP? The operating temperature range is -55°C to 125°C.
- What type of package does the ADS1278MPAPTEP come in? The device comes in an HTQFP-64 package.
- What are some common applications of the ADS1278MPAPTEP? Common applications include vibration and modal analysis, multi-channel data acquisition, acoustics, dynamic strain gauges, and pressure sensors.
